Shoe buffing machine



y 1935. F. RlcKs ET AL 2,008,797

SHOE BUFFING MACHINE Filed June 6, 1955 2 Sheets-Sheet 1 WVE/VTUQ WM m July 23, 1935. F, c s r AL 2,008,797

SHOE BUFFING MACHINE Filed June 6, 1933 2 Sheets-Sheet 2 Patented July 23, 1935 UNITED STATES PATENT OFFICE" SHOE BUFFI G MACHINE Fred Ricks and Charles Turner Jones, Leicester, 7

England, assignors to Unite'd'Shoe Machinery it a g Corporation, Paterson, N, J., a corporation of New Jersey .Application June 6, 1933, Serial No. 674,565

In Great Britain June 30, 1932 I Claims. (01. 51-273) breast surfaces of Louis heels and a bufiin 001' of the disk or Naumkeag type for operating upon the: shank portion of shoes. 7

' :It is an object of the present invention to pro ,videan improved arrangement for removing dustv which results from the operationof: bufiing tools. In accordance with thisobject, a feature of the invention consists in the provision, in combination witha bufiing roll, of an air blast nozzle beyond and adjacent to one end of the roll arranged .to directthe blast ofair along the length of the 20 end'of the-roll for receiving the dust-laden blast .of air; In the illustrated machine-the air blast nozzle is positioned adjacent to the free end of the frusto-conical tool referred to, and a'treadleoperated mechanism is: provided for swinging the nozzle to an out-of-the-way position when 'the operator desires to replacethe abrasivecovering of the tool. J

,"Iheillustrated-machine is provided also with 'a-vacuum cleaning brushfor removing fromthe shoes the dust which adheres to them asaresult of'the buffing operation. ,7 This brushis disclosed and claimed in our applicationfor United. States Letters Patent Serial No. 679,666, iiled-July m, 1933, which constitutes a division of the present application. 1 r

These and other features of the invention, comprising various combinations and arrangements of parts, -wi1l; be best understood from' the following description of the preferred "embodiment thereof, selectedfor purposes of illustration and shown in the accompanying drawings, in which r e 7 Fig. 1 is a viewin front elevation of the improved machine; I Fig. 2 is a longitudinal plan View of afrustoconical. buffingtoolhavingdust-removing devices associated therewith; H i

Fig..-3 is a sectional'view: taken on the .line so 1111 1-1101 Fig.2; L 2

4 is a-planyiew ofIa Naurnkeagtype of .tool in combination with a-dusthood; and Fig. 5is a si de'elevation of the tool andhood shown in Fig. 4 with the lower'portion of the'hood #5 -;open torender the tool'accessible. .1 I

roll, and a suction hood adjacent'to the opposite .is driven by'a shaft'46. The blower 44 has an ,Asuctiompipeifl connects the 'lower portion of The supporting structure of the machine (Fig, V 1) consists of aframe ill in the lower portion of whichare mounted bearings I2 fora shaft [4 carrying'ia pair of fixedand loose pulleys l6 and I8, respectively. A belt shifter having an operating lever-2D isprovided for stopping or starting rotation of the shaft I4. Journaled in the upper portion ofthe frame Ill is a shaft 22 which is driven from the shaft M by a belt 24 passing over suitable pulleys upon respective 10 shafts. A shaft 26 is journaled in bearings 28 which also are secured in the upperportion of the frame It). Mounted upon the shaft 26 are fine and coarse bottom scouring rolls 30 and 32-, respectively. The shaft 261s driven from the shaft 22 by a belt 34. It is theusual practice to reciprocate as well as rotate theshaft which carries bottom scouring rolls and a portion of areciprocating mechanism isenclosed within a housing 36. Such reciprocating mechanism is fully disclosed in the above-mentioned;application Serial No; 652,967, and no further description of it need be given in the present application."- Surrounding the upper and rear-portionsof the bottom scouring rolls 3B and 32 is a dust hood and beneath the bottom scouring rolls is a large dust col-lecting pan 4'0.

The dust hoods. 38 are connected through a branched duct 42 to the intake side of anexhaust blower 44 which is supported in the frame it and outlet opening 45 adapted for-connection with a suitableexhaustconduit. Power. is transmitted from' the shaftdkto theshaft 46 by a belt 48.

theQpan 4 -0120 the duct 42. 1

Secured in the upper portion of the frame ID are a pair of bearings 52 and 54;; respectively. A

shaft 56, which is journaled in these bearings, carries uponone of-iits'ends -'a frusto-conical bufling tool 58 provided with a nurled nut. 59 for securingan abrasive sleeve upon the tool. The

shaft 56 extends forwardly and toward the lefthandend of thejm'achine and they tool 58 is vmountedupon the forward andleft-hand end of shaft 22 is a pulley 62 and a belt 64 running over the pulleys 62 and 6!] drives the shaft 56. Frusto-conical tools such as the tool 58 are useful in buffing the breast surfaces of Louis heels. For receiving the dust which arises from this operation, there is provided a dust hood 66 (Figs. 1, .2 and 3) of frusto-conical form, the large open end of the hood 66 being adjacent to the end of the tool 58 which is secured upon the shaft. 56 and the small end of the hood 66 surrounding the shaft 5 3. The hood 66 is supported by a bracket 68 which is secured upon the upper portion of. the bearing 54. A draft duct 16,,oneend of which is connected to the intakeside of the blower 44, communicates with the interior of the dust hood 66 through an opening I2 formed in the wall of the dust hood. In order to distribute-the suction, a sector-shaped baflle plate 14 is positioned between the opening I2 and the large open end of the dust hood. .The bailie plate I4 is secured to the inner wall ofthe dust hood 66 and it extends substantially to the shaft 56 with'all'owance for clearance. Adjacent to'the'free end of the tool 58 and directed substantially'axially with respect to the tool is the openend of an air blast nozzle I6. The air blast nozzle I6 constitutes the discharge end of a conduit'll havingtwo elbows 19. The intake end of the conduit "is mounted for rotation about its'axis within as'uc tion pipe :73 which is connected to the 'outletend of a blower 86 mounted upon the frame I-. The use of an independent blower such as the blower -86 avoids the necessity of any filtering arrangement which would be required if "the-"pressure were to be taken from the outlet side' of the blower 44. The blower 86 has aj rotor shaft 82 which is driven from the shaft I4 bya belt 84 passed over suitable pulleys upon the respective shafts. A bracket 86 secured to the upper portion of the frame I0 supports the upper portion of the pipe 38. Secured upon the conduit I1 is a pulley 88 over which runs a chain 90'. The pulley 88 is formed for non-slipping engagement'with links in the chain 90'. The upper end of -'the chain 90 is connected to a spring 92 which isanchored in an extension of the upper portion of the frame Ill. The lower portion of the chain 90 is connected toa treadle 54. Wh'en'the operator wishes to renew the abrasive cover upon the tool 58 he depresses the treadle 94 thereby swinging the nozzle I6 out of its operative position, as shown in Fig. 1, to an out -o'f-th'e waiy position. It is sometimes advantageous also to swing the nozzle 'out of the way to' facilitate manipulation of a shoe, especially when' thetip end of the tool 58 is being employed for particularly delicate work. I

' Journaled in bearingssupported by a bracket I22 (Fig. 1) is'a spindle I24upon thelower end of which is mounted a bufiing tool I26 of the Naumkeag disk type such asis commonly employed in operating uponshanks; A'tool'of this type is disclosed in United States Letters Patent No. 1,227,622, granted May 29, Z1917, upon the application of Ernest Hope. Communicating with a suction conduit I28 supported upon the frame I6 is a dust hood 13o (Figsgl, 4 and" 5) which partially covers the rear face of the tool I26 "and which is recessed as indicated at I32 to avoid the spindle I24. The dust hood"l30 has a; bulged surface I34 to provide an'ai'r passage between the hood and the tool. Pivotally'connecte d to the hood I36by a. hinge I36 is an extension I38. The extension I38 partially surroundsthe periphery of the tool I26 and has a bottom wan 140 which extension dropped to the position indicated in Fig. 5, thus air.

is cut away as indicated at I42 in Fig. 4 to expose the working surface of the tool to the work. The extension I68 is normally securedin its upward or operative position, as shown in Fig. 1, by means of a latch I44 which is hinged to the extension at I45 and which engages the upper surface of the hood I30. When it is desired to replace the abrasive cover upon the tool I26 the I46 may readily be unlatched and I the upper surface of the rear portion of the hood.

The flange I46 is provided with arcuate slots for the bolts I48 to enable the operator to vary the orientation of the tool spindle I24. The conduit I28 extends up to the flange I46 where it'communicates with the interior .of the hood I30. The lower end of the conduit I28 opens into the suction duct 42. The spindle I24 carries a pulley I52 which is driven by a belt I54 passing over a pulley I56 on the shaft 22. The belt I54 is guided in its passage to and from the pulley I52 by a pair of idler pulleys (not shown).

For re'mov'ingthe fine deposit of dust which, in spite'of the high elficiency of the above described dust-removing devices, may still adhere to the surface of a shoe after the various bufiing operations have been performed upon the shoe,

there *is provided a vacuum cleaning brush I06 (Fig. 1) which is disclosed in detail and claimed in our above-mentioned co-pending application Serial No; 679,666. This brush is mounted upon asuction tube 98 which is-secured to the left.- handend of the pan 40 and connected by a pipe IOB- to thesuction duct 10. i

Where, as in the case of the machine disclosed in the above-mentioned application. Serial No. 652,967, the upper portion of the machine frame upon which the various tools are mounted con- "sists of a bracket pivotally mounted for up and down adjustment about the shaft 22, the various draft'conduits may be provided with flexible elements to accommodate such adjustment. Having described our invention, what we claim t'obe new and desire to secure by Letters Patent of the United States is:

'1. A shoe buffing machine comprising a buffing roll, an air blast nozzle beyond and adjacent to one end of said roll arranged to direct a blast of air along the length of the roll, and a suction hood adjacent to the opposite end of said roll for receiving the dust-laden blast of air.

2. A shoe bufiing machine comprising a. driven bufiingroll, means for supporting said roll at one end, the opposite end of said roll being free, an air blast nozzle beyond and adjacent to the free end of said roll arranged to direct a blast of air substantially axially along the length of said roll, and a suction hood adjacent to the supported end of said roll forreceiving the dust-laden blast of 3. A shoe buffing machine comprising a' bufling tool, and a conduit mounted for rotation about its axis and adapted for connection to a supply of air under pressure, said conduit terminating in an air blast nozzleofiset from the axis of the conduit, whereby the position of the air blast nozzle relatively to the bufiing toolmay be varied by rotating the conduit. 1 I

4. A shoe bufling machine comprising'a bufling tool, an air blast nozzle normally adjacent to said tool for directing a blast of air toward the tool to remove'dust arising from the work, a support for said nozzle constructed and'arranged to enable said nozzle to be moved away from said buffing tool, means for maintaining said nozzle in its normal position adjacent to the tool, and treadle-operated means for moving the nozzle from said normal position to render the bufling tool accessible for replacement of an abrasive cover thereupon.

5. A shoe bufiing machine comprising a rotary spindle, an elongated bufling tool secured at one end upon said spindle and having its opposite end free, a frusto-conical dust hood surrounding said spindle and having its large end adjacent to the secured end of said bufllng tool and open to receive dust arising from the operation of the tool upon the work, a suction duct opening into the Wall of said dust hood, and a sector-shaped baffle plate positioned between said suction duct and the large open end of said dust hood and extending from the inner wall of the dust hood substan- 1 tially to said spindle. 1

CHARLES TURNER JONES. FRED RICKSL 

